You are not allowed to do _any_ kernel call inside an ISR.
It might or might not crash your system.
When you take a look at the ref manual entry of a libc function
you can see at the ende whether this function is safe for ISR or not.
like for sem_post: http://www.qnx.com/developers/docs/6.4.0/neutrino/lib_ref/s/sem_post.html

/hp


-----Ursprüngliche Nachricht-----
Von:	Leonid Khait [mailto:community-noreply@qnx.com]
Gesendet:	Sa 26.09.2009 12:50
An:	ostech-core_os
Cc:	
Betreff:	sem_post() inside Interrupt Handler

Is it possible to use sem_post() function inside Hardware Interrupt Handler routine?

On my experiense the QNX6 blocked on sem_post() inside Interrupt Handler.

Thank you.



_______________________________________________

OSTech
http://community.qnx.com/sf/go/post38835 
 
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